SLS Hotel, a Luxury Collection Hotel, Beverly Hills

I booked this hotel for my self and my 2 teenage children. The room had to have 2 double beds, however after they checked-in the 3 of us, they gave us the key card for a room that had just 2 single beds. I called the reception and they told me that the hotel room can only accomdate 2 guests. When I explained we booked for 3 and paid for 3, she just said that the management will call us. The manager, James, come to the room and went full defensive and told us that it was our fault as we should have booked direct and not through booking.com, and that booking.com made a mistake in the listing and we should take it out with booking.com. We then showed him the listing and incredibly, he stated that they have no control on what booking.com advertises, which is a big fat lie. He then changed version and said that the room is correct as a double bed in America is the size of a single bed and it was my responsibility as a guest to verify the size of a double bed in America. So in America it seems that everything is big and oversized, except a double bed, as a double bed is in fact a single bed. After a lot of hassle, they changed us the room to one with a yard but same beds and gave us some friut to apologize but for me there is no sense of care and hospitality in this hotel. I ending sleeping on the floor because they would not give us an extra bed as they said it was a fire hazard, so it is okay to sleep on the floor but not on a foldable bed. Blaming the guest because he booked through booking.com and telling the guest that as a hotel, they have no control on the listing is unacceptable. We travelled all around America, this year, and hospitality in this country was top everywhere we went, however in this hotel, hospitality and the sense of care and respect for the guest was inexistent, at least for us.